mainboard/intel: Add Skylake based Kunimitsu board

Initial files to support the Kunimitsu board.
Matches chromium tree at 927026db

This board uses the Skylake FSP 1.1 image and does not build without the
FspUpdVpd.h file.

BRANCH=none
BUG=None
TEST=Build and run ChromeOS on kunimitsu

Change-Id: I1017a66bc811af51a0921e864b589ce2cb618082
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10836
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 118 insertions, 0 deletions

diff --git a/src/mainboard/intel/kunimitsu/spd/spd.c b/src/mainboard/intel/kunimitsu/spd/spd.c
new file mode 100644
index 0000000000..4860c03b71
--- /dev/null
+++ b/src/mainboard/intel/kunimitsu/spd/spd.c
@@ -0,0 +1,118 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/byteorder.h>
+#include <cbfs.h>
+#include <console/console.h>
+#include <string.h>
+#include <soc/gpio.h>
+#include <soc/pei_data.h>
+#include <soc/romstage.h>
+#include <ec/google/chromeec/ec.h>
+#include <mainboard/intel/kunimitsu/spd/spd.h>
+
+static void mainboard_print_spd_info(uint8_t spd[])
+{
+	const int spd_banks[8] = {  8, 16, 32, 64, -1, -1, -1, -1 };
+	const int spd_capmb[8] = {  1,  2,  4,  8, 16, 32, 64,  0 };
+	const int spd_rows[8]  = { 12, 13, 14, 15, 16, -1, -1, -1 };
+	const int spd_cols[8]  = {  9, 10, 11, 12, -1, -1, -1, -1 };
+	const int spd_ranks[8] = {  1,  2,  3,  4, -1, -1, -1, -1 };
+	const int spd_devw[8]  = {  4,  8, 16, 32, -1, -1, -1, -1 };
+	const int spd_busw[8]  = {  8, 16, 32, 64, -1, -1, -1, -1 };
+	char spd_name[SPD_PART_LEN+1] = { 0 };
+
+	int banks = spd_banks[(spd[SPD_DENSITY_BANKS] >> 4) & 7];
+	int capmb = spd_capmb[spd[SPD_DENSITY_BANKS] & 7] * 256;
+	int rows  = spd_rows[(spd[SPD_ADDRESSING] >> 3) & 7];
+	int cols  = spd_cols[spd[SPD_ADDRESSING] & 7];
+	int ranks = spd_ranks[(spd[SPD_ORGANIZATION] >> 3) & 7];
+	int devw  = spd_devw[spd[SPD_ORGANIZATION] & 7];
+	int busw  = spd_busw[spd[SPD_BUS_DEV_WIDTH] & 7];
+
+	/* Module type */
+	printk(BIOS_INFO, "SPD: module type is ");
+	switch (spd[SPD_DRAM_TYPE]) {
+	case SPD_DRAM_DDR3:
+		printk(BIOS_INFO, "DDR3\n");
+		break;
+	case SPD_DRAM_LPDDR3:
+		printk(BIOS_INFO, "LPDDR3\n");
+		break;
+	default:
+		printk(BIOS_INFO, "Unknown (%02x)\n", spd[SPD_DRAM_TYPE]);
+		break;
+	}
+
+	/* Module Part Number */
+	memcpy(spd_name, &spd[SPD_PART_OFF], SPD_PART_LEN);
+	spd_name[SPD_PART_LEN] = 0;
+	printk(BIOS_INFO, "SPD: module part is %s\n", spd_name);
+
+	printk(BIOS_INFO,
+		"SPD: banks %d, ranks %d, rows %d, columns %d, density %d Mb\n",
+		banks, ranks, rows, cols, capmb);
+	printk(BIOS_INFO, "SPD: device width %d bits, bus width %d bits\n",
+		devw, busw);
+
+	if (capmb > 0 && busw > 0 && devw > 0 && ranks > 0) {
+		/* SIZE = DENSITY / 8 * BUS_WIDTH / SDRAM_WIDTH * RANKS */
+		printk(BIOS_INFO, "SPD: module size is %u MB (per channel)\n",
+		       capmb / 8 * busw / devw * ranks);
+	}
+}
+
+/* Copy SPD data for on-board memory */
+void mainboard_fill_spd_data(struct pei_data *pei_data)
+{
+	char *spd_file;
+	size_t spd_file_len;
+	int spd_index;
+
+	/* Load SPD data from CBFS */
+	spd_file = cbfs_boot_map_with_leak("spd.bin", CBFS_TYPE_SPD,
+		&spd_file_len);
+	if (!spd_file)
+		die("SPD data not found.");
+
+	/* make sure we have at least one SPD in the file. */
+	if (spd_file_len < SPD_LEN)
+		die("Missing SPD data.");
+
+	/* Add board SKU detection here.  Currently we only support one. */
+	spd_index = 0;
+
+	/* Make sure we did not overrun the buffer */
+	if (spd_file_len < ((spd_index + 1) * SPD_LEN)) {
+		printk(BIOS_ERR, "SPD index override to 0 - old hardware?\n");
+		spd_index = 0;
+	}
+
+	/* Assume same memory in both channels */
+	spd_index *= SPD_LEN;
+	memcpy(pei_data->spd_data[0][0], spd_file + spd_index, SPD_LEN);
+	memcpy(pei_data->spd_data[1][0], spd_file + spd_index, SPD_LEN);
+
+	/* Make sure a valid SPD was found */
+	if (pei_data->spd_data[0][0][0] == 0)
+		die("Invalid SPD data.");
+
+	mainboard_print_spd_info(pei_data->spd_data[0][0]);
+}